CN201520081U

CN201520081U - Tooth-shaped three-arc structure of corrugated roller

Info

Publication number: CN201520081U
Application number: CN2009202088806U
Authority: CN
Inventors: 吴小峰
Original assignee: SHANGHAI CORRUGATED ROLLER CO Ltd
Current assignee: SHANGHAI CORRUGATED ROLLER CO Ltd
Priority date: 2009-09-18
Filing date: 2009-09-18
Publication date: 2010-07-07
Anticipated expiration: 2019-09-18

Abstract

The utility model relates to a tooth-shaped three-arc structure of a corrugated roller, which comprises a tooth-shaped structure, wherein the tooth-shaped structure comprises a tooth top arc with the radius of r, a tooth bottom arc with the radius of R, and a middle connection arc with the radius of R respectively connected with the tooth top arc and the tooth bottom arc; and one end of the middle connection arc keeps exterior contact with the tooth top arc, and the other end keeps exterior contact with the tooth bottom arc. The tooth-shaped three-arc structure of the corrugated roller has the advantages of reduced contact angle and tension of paper sheet, improved compressive strength of paper board, reduced resonance and noise, high adaptability to high-speed line, and can prolong the service life of the corrugated roller.

Description

Corrugation roller flute profile three-arc structure

Technical field

The utility model relates to a kind of corrugation roller, relates in particular to the tooth type structures of this corrugation roller.

Background technology

The corrugation roller is the heart component of sewing thread on card, the reasonability and the accuracy of manufacture of its stupefied shape design, and wear-resisting, withstand voltage degree has substantial connection to the speed of service of its service life and sewing thread on card.The tooth profile curve will directly determine the intensity (BCT, FCT) and the corrugation rate TUR of carton.

The version of profile of tooth of the prior art is " the tooth top circular arc is connected by circumscribed straight line with circular arc at the bottom of the tooth ".Because of low cost of manufacture, technology are simple relatively, and the producer of manufactured corrugation roller extensively adopts.

As Fig. 1, shown in Figure 2: during the work of corrugation roller, input fluting medium 101 in the middle of two rollers through top roll 102, lower roll 103 engagement roll compacting flatiron moulding, forms corrugating medium 104; In corrugating medium's 104 forming processes, must there be certain clearance in top roll 102 with lower roll 103 flank in engagement, and be that list meshes tooth, the flank profil contact zone concentrates on the point gearing of tooth top and roller seating space, the stupefied alternately point in both sides for the engagement transmission, acceleration sudden change or rotating speed are higher, and engagement transmission alternating frequency can be accelerated, and then produces periodic judder and noise.Having only radius is that circular arc B there are differences and could produce rational backlash at the bottom of the tooth top circular arc A of r and the tooth that radius is R.And radius is the increasing of circular arc B difference at the bottom of the tooth top circular arc A of r and the tooth that radius is R, can quicken the wearing and tearing of stupefied type, after the wearing and tearing, and the difficulty that diminishes paper feed is become of backlash.Owing to the existence of flank straight line, corrugating medium 104 is in forming process again, and the straight line of flank will be clamped core paper and hinder it and walk in the labyrinth, thereby make the speed of service low, and limit velocity is 180～200 meters/minute, and wearing and tearing are accelerated, and the life-span is low.Among the figure: H: tooth depth α: profile angle T: circular pitch θ: minute of angle.

Summary of the invention

The utility model technical issues that need to address have provided a kind of corrugation roller flute profile three-arc structure, are intended to solve the above problems.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model comprises: flute profile; Flute profile comprises: radius is a circular arc at the bottom of the tooth top circular arc of r, the tooth that radius is R; Comprise that also one section is that the radius that circular arc joins at the bottom of the tooth top circular arc of r and the tooth that radius is R is R with radius respectively _InConnect circular arc; Described radius is R _InOne end of connection circular arc and the tooth top circular arc that radius is r are circumscribed, and radius is R _InCircular arc is circumscribed at the bottom of the other end of connection circular arc and the tooth that radius is R.

Compared with prior art, the beneficial effects of the utility model are: reduce contact angle and paper tension, increase cardboard compression strength, reduce resonance and noise, and strong to high-speed line adaptability, corrugation roller high life.

Description of drawings

Fig. 1 is the tooth type structures operation principle schematic diagram of corrugation roller in the prior art;

Fig. 2 is the tooth type structures schematic diagram of corrugation roller in the prior art;

Fig. 3 is the utility model structural representation;

Fig. 4 is operation principle signal of the present utility model.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:

By Fig. 3, Fig. 4 as seen: the utility model comprises: flute profile; Flute profile comprises: radius is circular arc B at the bottom of the tooth top circular arc A of r, the tooth that radius is R; Comprise that also one section is that the radius that circular arc B joins at the bottom of the tooth top circular arc A of r and the tooth that radius is R is R with radius respectively _InConnect circular arc C; Described radius is R _InOne end of connection circular arc C and the tooth top circular arc A that radius is r are circumscribed, and radius is R _InCircular arc B is circumscribed at the bottom of the other end of connection circular arc C and the tooth that radius is R.Among the figure: H: tooth depth α: profile angle T: circular pitch θ: minute of angle.

When the corrugation roller was worked, the lower roll flank profil 301 and the top roll flank profil 304 of corrugation roller were in complete contact condition, and corrugating medium can be passed in the corrugation flank profil freely like this, and the mill sassafras power between the corrugating medium and the flank of tooth reduces, thereby paper tension is reduced; The lower roll flank profil 301 of corrugation roller and the impact of the additional dynamic load in top roll flank profil 304 engagement processes are reduced; Reduce noise and vibration thereby reach.

From accompanying drawing 4 as seen: traditional tooth type structures and the three-arc structure, under the situation that arc radius at the bottom of their tooth top arc radius and the tooth equates, backlash 305 of the present utility model is bigger than traditional tooth type structures backlash, can adapt to the paper of low grammes per square metre, and area of contact fragile paper very much not.

Design of the present utility model has changed the outside circle of traditional corrugation roller flute profile and has been connected simple structure with the flexible tangent line of crossing at the bottom of the tooth, but adopt outside circle to be connected new structure with the circumscribed arc of flexible mistake at the bottom of the tooth, like this when the corrugation roller is worked, upper corrugated roller can contact fully with the lower corrugated roller engagement, resonance and noise had both been reduced, improve corrugation roller limit velocity to 250～350 meter per seconds, can reduce the wearing and tearing of stupefied shape again, increased corrugation roller service life.

Claims

1. a corrugation roller flute profile three-arc structure comprises: flute profile; Flute profile comprises: radius is a circular arc at the bottom of the tooth top circular arc of r, the tooth that radius is R; It is characterized in that: comprise that also one section is that the radius that circular arc joins at the bottom of the tooth top circular arc of r and the tooth that radius is R is R with radius respectively _InConnect circular arc; Described radius is R _InOne end of connection circular arc and the tooth top circular arc that radius is r are circumscribed, and radius is R _InCircular arc is circumscribed at the bottom of the other end of connection circular arc and the tooth that radius is R.